From c32c4cb9fbe3bdc2a90c6eaae5ae30521d4ba9fc Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Fri, 26 Aug 2005 19:09:10 -0700 Subject: [PATCH] [SCSI] qla2xxx: Remove RISC pause/release barriers during flash manipulation. Remove unnecessary RISC pause/release barriers during ISP24xx flash manipulation. The ISP24xx can arbitrate flash access requests during RISC executions. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_sup.c | 34 ---------------------------------- 1 file changed, 34 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c index d7f5c608009c..c14abf743b7c 100644 --- a/drivers/scsi/qla2xxx/qla_sup.c +++ b/drivers/scsi/qla2xxx/qla_sup.c @@ -468,21 +468,12 @@ qla24xx_read_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, uint32_t dwords) { uint32_t i; - struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; - - /* Pause RISC. */ - WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ /* Dword reads to flash. */ for (i = 0; i < dwords; i++, faddr++) dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha, flash_data_to_access_addr(faddr))); - /* Release RISC pause. */ - WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ - return dwptr; } @@ -532,10 +523,6 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, ret = QLA_SUCCESS; - /* Pause RISC. */ - WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ - qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id); DEBUG9(printk("%s(%ld): Flash man_id=%d flash_id=%d\n", __func__, ha->host_no, man_id, flash_id)); @@ -599,10 +586,6 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, RD_REG_DWORD(®->ctrl_status) & ~CSRX_FLASH_ENABLE); RD_REG_DWORD(®->ctrl_status); /* PCI Posting. */ - /* Release RISC pause. */ - WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ - return ret; } @@ -630,11 +613,6 @@ qla24xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, { uint32_t i; uint32_t *dwptr; - struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; - - /* Pause RISC. */ - WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ /* Dword reads to flash. */ dwptr = (uint32_t *)buf; @@ -642,10 +620,6 @@ qla24xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha, nvram_data_to_access_addr(naddr))); - /* Release RISC pause. */ - WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ - return buf; } @@ -690,10 +664,6 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, ret = QLA_SUCCESS; - /* Pause RISC. */ - WRT_REG_DWORD(®->hccr, HCCRX_SET_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ - /* Enable flash write. */ WRT_REG_DWORD(®->ctrl_status, RD_REG_DWORD(®->ctrl_status) | CSRX_FLASH_ENABLE); @@ -728,9 +698,5 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, RD_REG_DWORD(®->ctrl_status) & ~CSRX_FLASH_ENABLE); RD_REG_DWORD(®->ctrl_status); /* PCI Posting. */ - /* Release RISC pause. */ - WRT_REG_DWORD(®->hccr, HCCRX_REL_RISC_PAUSE); - RD_REG_DWORD(®->hccr); /* PCI Posting. */ - return ret; } -- 2.30.2